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Thermal Design Correlations for Single- and Two-Phase Flow of R-407C in Meso-Scale Heat Exchangers

[+] Author Affiliations
Yasir M. Shariff

Saudi Telecom Company

T. S. Ravigururajan

Wichita State University

Paper No. IMECE2004-62512, pp. 35-41; 7 pages
  • ASME 2004 International Mechanical Engineering Congress and Exposition
  • Process Industries
  • Anaheim, California, USA, November 13 – 19, 2004
  • Conference Sponsors: Process Industries Division
  • ISBN: 0-7918-4717-9 | eISBN: 0-7918-4178-2, 0-7918-4179-0, 0-7918-4180-4
  • Copyright © 2004 by ASME


The paper presents correlation development for an experimental database done on R-407C flow in meso-scale horizontal channels. Single-phase, two-phase subcooled, and two-phase saturated boiling flow correlations were developed. The variables considered in this study including essential design parameters, such as, channel diameter, coils pitch and diameter. For flow variables considered are the Reynolds number and the Prandtl number. The purpose of this study is to present new design correlations for flow boiling in a ternary refrigerant mixture at a meso-scale size. The relative influences of enhancement design parameters on friction factor and heat transfer were carried in this parametric analysis of the flow boiling correlations. The resulted correlations developed in this study are compared to available published correlations.

Copyright © 2004 by ASME



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